Improved horseshoe-machine



UNITED STATE-s.

PATENT Gruner...I

JACOB REESE AND ABRAM .REESE, OF PITTSBURG, PENNSYLVANIA.

IMPROVED HORSESHOE-MACHINE.

Specification forming part of Letters Patent No. 97, l lS, datedNovember 23, 1869.

To @ZZ whom it may concern/s Be it known that we, JxcoB REEsn and ABRAMAlnnsn, of the city of Pittsburg, in the county of Allegheny and Stateof Pennsylvania, have invented a new and useful Improvement inHorseshoe-lllachines, and we do hereby declare the following to be afull, clear, and exact description thereof, reference being had to theaccompanying drawings, `making a part of this specification, in whichFigure 1 is a side elevation of our improved machine. Fig. 2 is a planview of the swaging devices. Fig. 3 is a crosssection through a: Fig. 2,except the swaging rollers are shown in side view. Fig. 4 is a plan viewof the forming-plates. Fig. 5 is an inverted perspective view of theformer and roller guide and former-block, and Fig. 6 is a side elevationof the discharging-plate and former.

Like letters of reference indicate like parts in each.

The nature of our invention consists in the construction, combination,and arrangement of devices for bending and 'forming horseshoes frompreviously-rolled horseshoe-blanks, such devices consistingsubstantially of a single former or of a series of formers of animproved construction guided in areciprocating motion by forming-plates,so as to swage the shoe between double rollers, which are held by stemsand boxes; also, of restplates, and springs for holding the blank inplace, and clearing-tools for discharging the shoe when formed.

To enable others skilled in the art to make and use our invention, wewill proceed to describe its construction and mode of operation.

The operating parts are arranged on any l suitable bed, frame, orfoundation, A, and the necessary power to operate them is communicatedthrough a crank and sha-ft, B B, or other kno'wn way of producing areciprocating motion.

In the top of the frame A, and extending longitudinally therewith, aregrooved ways a, in which operate the tongues a on the under side of thereciprocating carriage C.

On each side of the frame A, and securely fastened thereto, is a pair ofuprights, D, the upper ends of which project a short distance above thetop of the frame. Each of these uprights has a stem-box, d', projectingoutward sufficiently far to hold securely against lateral or rotarymotion a stem, d, which, so

far as the `box is concerned, operates longitudinally therein withfreedom. rlhe opposite uprights, D, are 'connected together bycrossplates E, the lower faces 'of which are far` enough above the frameA to allow the reciprocating carriage C to pass under it. Thesecross-plates are arranged in the planes of the stems d, and have slots sat either end, as shown, for the operation therein ofthe stems d.'

On the inner end of each stem d is an eye, c, through which passes theclosely fitting axle c of a double friction or forming roller, e e', theupper roller, e, standing above the cross-plate E, and the lower roller,e', below it.

On top of the cross-plate E, and arranged between each pair offorming-rollers @,Yis a rest-plate, E', its opposite ends being slotted,as shown in Figs. 2 and 3, for the admission of the rollers e therein.The upper ends of the forming-rollers e project above the upper face ofthe rest-plate E so far that by a collar, z, on the end a groove, z',may be formed,

which is, as near may be, of a width equal to Y the thickness of thehorseshoe to be made.

With each pair of rollers e, and outside ofl the same, is a pair ofsprings, f, which are secured to the uprights D, or to some otherconvenient stationary part of the machine.

On top of the reciprocating carriage C the4 frame F, which passesdirectly over the space included between the opposite rollers, e e.

Set in the under face of the arch F are two blocks, f', each one ofwhich has a former, m, standing out from a raised part, n, the height ofthe raised part a being equal to the breadth of the collar z on theforming-roller e, and the height or thicknessof the former m being equalto the breadth of the groove z' in the same roller, and of courseJ equalto the thickness of the shoe-blank, These formers m are so arranged onthe arch F that as the latter moves back and forth with the carriage Cthe form ers m will operate back and forth betwe( n the forming-rollerse, and so be operative in l rollers e as far apart as possible, thatbeing bending horseshoes, as presently to be described.

It will be observed that the ends of the formers m against which the toepart of the shoe is bent are arranged outward, though this is notnecessary, except as being more convenient in discharging the shoe.

The shoe-blanks being cut to the required length from ordinaryhorseshoe-bar, or from bars rolled out into bar-blanks of the desiredvarying width and thickness, the blanks are heated, and placedsuccessively on the restplate E in the position shown at G in Fig. l2,the outer edge of the blank resting against the forming-rollers c in thegrooves z, the inner edge being in front of the former m, and the endsbeing pressed by the springs f. These springs j' are so set and adjustedthat they will hold the blank g, with its middle point, as nearly aspracticable midway between the forming-rollers c, and of course directlyin front of the former m. Then by the .forward motion of the carriage Cthe former m engages the blank gat its middle point, carries it forwardbetween the forming-rollers e, which by the means presently to bedescribed are caused to press up against the blank, and so make it hugthe si des of the former m, even back to that part of it which forms theheel of the shoe. The blank in being thus bent is prevented fromtwisting by entering the grooves z, the collar on either side of suchgroove preventing it from being bent in any' but the right direction.

The forming-rollers e are caused to operate in the manner described bythe action of the forming-plates Z' on :the lower roller, e. The inneror working faces, i', of these plates have a curvature exactly thereverse of that of each half of the former m, so that as the swell ofthe former m causes the rollers etc move outward the hollow parts of theforming-plates@- will permit of such motion, and as the former m narrowstoward its heel the forming-plates Z, each by a swell in its inner orWorking face, will force its roller c inward, and with it the upperroller, c, connected therewith,whereby the latter willbe made to swagetheheel parts of the shoe-blank tightly up against the narrow part ofthe former m. and thus make a well-shaped shoe. Vith the reverse motionof the carriage C, the other former and the other pairs of upper andlower rollers and forming-plates will operate in a like manner inbending up a shoe, so that a shoe will be bent complete with each strokeof the machine.

The raised parts n are made with the heel end n tapered back, so as atits end to be narrower than the breadth of a shoe at the heel, and, iffound necessary, this taper may be earried to a point, while itsopposite end is of a breadth greater than the greatest breadth of theshoe. Then with each stroke of the niachine the heel n of the raisedpart a, which we also call a roller-guide, will operate like a wedgeagainst the collar z and in forcing the the best position for them tooccupy at the beginning of a new forward stroke, since in that positionthey exert their maximum of leverage in bending the blank, and thisfeature we desire to claim as a part of our invention.

It will be observed that by passing the stems Z through the long boxes dwe prevent the rollers e e from moving in any direction except inward oroutward. The stems cZ and the sockets through which they play may be ofany shape in cross-section except circular, the obj ect being in thisrespect only to prevent a rotary motion.

For the purpose of discharging the shoes from the formers m, we use adischarging device more fully shown in Fig. 6. This device is arrangedin the arch F, over each former m, and consists of a plate, Z, having anoval topped clearing projection, Z, the clearing-plate Z being set ongrinding-posts o, and supported by spiral springs o thereon, or otherlike device.

From the under side of the plate Z the discharging-pins n project downthrough vholes in the block f, just outside the edge of the raisedformer m, so as to come against the shoe when bentone on each side ofthe former m and one at the toe. l

Attached to the upright D, or other stationary parts of the machine, arethe clearingyokcs u', which are so arranged that as soon as theshoe-blank is properly bent and has passed clear of therest-plateEtheprojection Z will strike it, by which the plate Z will bedepressed, the pins n forced downward, and the shoe discharged. It thenfalls to the floor under the machine. The -motions and inode ofoperation are the same with the discharging device for each former. Aswe usually bevel and crease the shoe-blanks in rolling and beforecutting and bending, it only remains necessary to punch the nail-holesto render the shoes ready for market.

By constructing the machine with the formers m in sets of two, or with afull set of two, as described, and additional formers in full or partsets, we are enabled to make one or more shoes at each stroke of themachine, and at the same time by using formers m and forming plates Z ofdifferent sizes we make different sizes of shoes at the same time, andare thus enabled to supply the demand for such sizes without changingthe formers. The machine we now have in operation has five formers, andis capable of bending fifteen tons of shoes per day.

ha-t we claim as our invention, and desire to secure by Letters Patent,is

l. The arrangement of the former m, pair of forming-plates i i, anddouble forming-rollers e e, substantially as described.

I 2. The double rollers e c', arranged on astem, ZZ, which operates inabox, rZ, substantially as and for the purposes set forth.

3. The raised portion of the die underlying and surrounding the formerm, with its nar row point a and broad part n, in combination rollers e,so as to bend shoes at both strokes of the machine.

In testimony whereof We, the said JACOB REEsE and ABRAM REEsE, havehereunto set our hands.

JACOB REESE. ABRAM REESE.

Witnesses:

A.- S. NICHOLSON, THos. B. KERR.

